In the Google Merchant Center structured data documentation, it says that you should add structured data to the HTML source and that it "can't be generated after a page has been loaded using ...

Many search engines rely on structured data to enhance user experiences – and this trend will likely intensify in 2025. For this reason, structured data is no longer a “nice-to-have” but an essential ...

Google updated its documentation around its shopping related structured data warning not to generate your structured data ...

Google updates guidance on Product markup, advising ecommerce sites to prioritize HTML implementation and use JavaScript cautiously. Google recommends including Product markup in initial HTML for best ...